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Effects of Venesection on Cerebral Function in Chronic Lung Disease

Published online by Cambridge University Press:  18 September 2015

R. Bornstein*
Affiliation:
Division of Psychology, University of Alberta Hospital and the Divisions of Biomedical Engineering and Pulmonary Medicine, University of Alberta, Edmonton, Canada
D. Menon
Affiliation:
Division of Psychology, University of Alberta Hospital and the Divisions of Biomedical Engineering and Pulmonary Medicine, University of Alberta, Edmonton, Canada
E. York
Affiliation:
Division of Psychology, University of Alberta Hospital and the Divisions of Biomedical Engineering and Pulmonary Medicine, University of Alberta, Edmonton, Canada
B. Sproule
Affiliation:
Division of Psychology, University of Alberta Hospital and the Divisions of Biomedical Engineering and Pulmonary Medicine, University of Alberta, Edmonton, Canada
C. Zak
Affiliation:
Division of Psychology, University of Alberta Hospital and the Divisions of Biomedical Engineering and Pulmonary Medicine, University of Alberta, Edmonton, Canada
*
Division of Psychology, University of Alberta Hospital, 112 Street and 83 Avenue, Edmonton, Alberta, Canada, T6G 2B7
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Regional cerebral blood flow measurements and neuropsychological testing were conducted before and after venesection on 6 patients with polycythemia secondary to chronic obstructive pulmonary disease. Venesection resulted in lowered viscosity and hematocrit, and an accompanying improvement in cerebral perfusion and mental function. Blood flow was significantly increased in the left cerebral hemisphere following phlebotomy, and there was significant improvement in sensory I mental function. Cerebral function would appear to be related to blood flow alterations influenced by the viscosity of the blood.

Type
Research Article
Copyright
Copyright © Canadian Neurological Sciences Federation 1980

References

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